Grafting and Budding Are Methods

Grafting and Budding Are Methods

Grafting And Budding Agenda Introduction, Purpose & Timing Grafting Terms How a graft works Tools used Type of Grafts & Techniques Types of Budding & Techniques Fun with Grafting What Is a Graft? Grafting and budding are methods of asexual plant propagation that join parts from two different plants so they will grow as one plant. Why do we Graft? Propagate where other methods will not work Obtain benefits of the stock material M-9 40% 10ft EMLA-7 60% 15ft EMLA-111 80% 20ft Change cultivar on established plant Repair damage tree parts Faster production of new fruit 2/3 vs 5/7 years Novelties – more than one cultivar on one tree Grafting Terms Grafting: Joining two plant pieces to make one plant Scion: Detached shoot from last year’s growth with dormant buds, upper graft part. Stock: Basal part of the graft (understock or rootstock) Interstock: Stem pieces added between stock & scion Cambium: This is a single layer of cells between the wood and bark. It must be lined up for a good graft union. Steps in Healing Tissues involved are the Xylem, Phloem and Cambium Callus from stock & scion fill the space and interlock to form “callusbridge” Callus cells in line between stock & scion cambium change into cambium cells New cambium produce Xylem & Phloem in wound to establish a vascular connection. Tissues involved in graft union Steps in Healing Tissues involved are the Xylem, Phloem and Cambium Callus from stock & scion fill the space and interlock to form “callusbridge” Callus cells in line between stock & scion cambium change into cambium cells New cambium produce Xylem & Phloem in wound to establish a vascular connection. Tools Used Budding Knife / Grafting Knife Fine tooth saw Pruning shears Tying Materials : tape, rubber strips Wax A cleft-grafting chisel or small hatchet/heavy knife Grafting Machine Budding Chip Budding Grafting and Budding Notes Cambial layers of stock and scion must meet Parts must be held securely Keep air out! Union heals by callus production Adequate temperature for cell division There are limitations! Questions ? Tree Steward Bill Blair Gloucester County Office MG Coordinator 7400 Carriage Court Master Gardener PO Box 156 Tree Steward Gloucester, VA. 23061 Virginia Cooperative Extension Master Naturalist Phone: 804/693-2602 757/ 871- 8022 Fax: 804/693-1383 804/ 694-8178 http://office.ext.vt.edu/gloucester [email protected] [email protected] t .

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